Genetic Analysis of a Collection of Rice Germplasm (Oryza sativa L.) through High-Density SNP Array Provides Useful Information for Further Breeding Practices
文献类型： 外文期刊
作者： Huang, Ping 1 ; Gu, Qiongyao 1 ; Hu, Yong 2 ; Li, Huahui 1 ; Wu, Zhigang 1 ; Liu, Weihua 1 ; Zhu, Zhenhua 1 ; Yuan, Pingrong 1 ; Duan, Liu 2 ; Zhou, Ying 3 ; Luo, Hanyu 4 ; Kou, Shuyan 1 ; Liu, Li 2 ;
作者机构： 1.Yunnan Acad Agr Sci, Inst Food Crops, Kunming 650205, Yunnan, Peoples R China
2.Hubei Univ, Hubei Collaborat Innovat Ctr Green Transformat Bi, State Key Lab Biocatalysis & Enzyme Engn, Sch Life Sci,Hubei Key Lab Ind Biotechnol, Wuhan 430062, Peoples R China
3.Wuhan Univ Sci & Technol, Coll Life Sci & Hlth, Wuhan 430065, Peoples R China
4.Yunnan Inntra Intelligence Syst Co Ltd, 22-F Junhao Bldg,Kegao Rd, Kunming 650101, Yunnan, Peoples R China
关键词： genetic diversity; rice; SNP; local variety
期刊名称：GENES （ 影响因子：4.141； 五年影响因子：4.474 ）
ISSN：
年卷期： 2022 年 13 卷 5 期
页码：
收录情况： SCI
摘要： Traditional breeding strategies mainly focus on the evaluation of trait performance, but pay less attention to the changing genetic background. A comprehensive understanding of the genetic diversity of germplasms is crucial for the deliberate improvement of specific traits. A collection of 154 highland rice varieties were collected as the initial genetic resource in our breeding program to improve the pathogen resistance and eating and cooking qualities. These varieties were analyzed using a whole-genome SNP array and were clustered into three groups. Further analysis revealed that the favorable alleles of pathogen resistance genes are mostly absent in our collected varieties. However, it showed that most varieties possess favorable alleles of Waxy (Wx) and ALKALI DEGENERATION (ALK), which are able to enhance the eating and cooking qualities. Moreover, only about one fifth of all varieties harbors favorable the allele of fragrance gene Betaine aldehyde dehydrogenase (BADH2). Together, these results give an overall view of the genetic constitution of the target traits, which provide useful information for future genetic improvement in breeding practices.
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